<svg xmlns="http://www.w3.org/2000/svg"
     xmlns:xlink="http://www.w3.org/1999/xlink"
     class="reftest-wait"
     onload="
        document.documentElement.pauseAnimations();
        document.documentElement.setCurrentTime(0);
        document.getElementById('a').removeAttribute('dur');
        setTimeAndSnapshot(2, false)">
  <script xlink:href="../smil-util.js" type="text/javascript"/>
  <!--
    A cycle that is valid at first but then becomes invalid.

    So at first we have:
    a: 0s-1.5s
    new -> b: 1.5s-2.5s
    new -> a: add 1.5s begin instance time

    Remove 'dur' attr:
    a: 0s-unresolved
    change -> b: unresolved... delete interval
    delete -> a: already visited <break>

    a: 0s-unresolved
    b: unresolved-unresolved
   -->
  <rect width="100" height="100" fill="green">
    <animate attributeName="y" attributeType="XML" from="0" to="0" id="a"
      begin="b.begin; 0s" dur="1.5s"/>
    <animate attributeName="fill" attributeType="CSS" id="b"
      values="red; red"
      begin="a.end" dur="1s"/>
  </rect>
</svg>
